Wal-Mart is by far the world's most popular and profitable retailer. While its stockholders may feel the pinch of taking better care of its employees, even its part-time workers, the 1.4M workers who call Wal-Mart their employer just want to be taken care of too.

When people retire, they often decide to pull up stakes and move to a new city. No longer bound by the restraints of employment offices or client locales, retirees may instead find themselves drawn to places with great weather, affordable housing or better amenities than where they currently live.U.…